With Marvell’s 88EM8801 family of LED-control ICs, LED lighting fixture manufacturers can create new, more sophisticated products for smart office buildings and factories. The devices provide 10-bit precision pulse-width modulation (PWM) dimming control for two LED strings. The light output level can be precisely varied from full brightness down to 0.1% deep dimming.
A one-time programmable (OTP) memory block lets lighting manufacturers calibrate each string to its respective target LED current during manufacturing. As a result, manufacturers don’t need to hand-select LEDs by bins for consistent brightness from fixture to fixture.
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